I have a RT that has not been eating well. We took him to the Vet Hospital at UGA, and then did x-ray and blood work and found nothing at all wrong with him. The Vet said that while he is not eating well, he shows a growth ring, and no ill effects in his tests. It is possible he is eating the coconut media or timothy hay I had in his hide. Today I checked on him and found this (picture). I have never seen a yellow discharge like this before. I don't think its diarrhea, because the vet found no sign of a parasite infestation. Can anyone offer any help?